Comparison

Critical Care Visitors vs On

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Critical Care Visitors

This app offers guidance and information for visitors to critical care units at Nottingham University Hospitals. It provides details on procedures, visiting times, facilities, and technical terms in an easy-to-navigate format.

Highlights
  • Color-coded information pages
  • Collapsible sections
  • Explanations of procedures and terms
  • Visiting times and facilities details
  • Offline access
  • Auto-update functionality
Features
Read full description

An application designed to provide help and guidance information for visitors to Critical Care at the Nottingham University Hospitals NHS Trust (NUH) Queens Medical Centre and City Hospital campuses. Features: Simple colour coded information pages with collapsable sections Useful information on procedures and technical terms Details of visiting times and available facilities Offline access Auto update Important ! Although the size of the app is quite small, once installed the app will need to download additional data files which can be quite large. For this reason please ensure that you are using WiFi or a cellular connection without any download limits when using the app for the first time.

About

On

Manage on-call shifts and track medical jobs efficiently. Prioritize workload, generate handover summaries instantly, and ensure data privacy with local storage. Designed by a doctor for fast, secure use during busy shifts.

Highlights
  • Track urgent and routine jobs
  • Prioritize workload
  • Generate structured handover summaries
  • Secure local data storage
  • Face ID protection
  • Fast and intuitive interface
Features
Read full description

On-call is the job management app built specifically for doctors working on-call shifts. It gives you a clean, fast way to track jobs, prioritise your workload and hand over safely. Track jobs the way you actually work. Add urgent and routine jobs as the bleeps come in. Handover in seconds. Generate a clean, structured summary in one tap. Send via messages, qr code or airdrop. Your data stays on your device, On-call stores everything locally. No accounts, no cloud sync, no analytics, no tracking. Data never leaves your phone. Face ID protection keeps the app locked between uses. Designed by a doctor, for doctors. Every design decision was made with a busy on-call shift in mind. Fast to open, fast to add a job, fast to clear one when it's done. On-call is completely free.

Screenshots

Critical Care Visitors4 screens
On4 screens

Verdict

The call

The clearest difference is in-app purchases: Critical Care Visitors at none against On's 1. Critical Care Visitors also leads on iOS requirement (13.0 vs 17.6). On's advantage is update cadence (weekly vs every 3 weeks). On price, review sentiment, ads and monetization model there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. On sells 1 one-off in-app purchase. Critical Care Visitors asks for nothing beyond the download.

UpkeepUpdate frequency

Critical Care Visitors ships an update every 3 weeks, On weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences ยท 5 level
Critical Care Visitors versus On: the parameters behind the verdict, then further details
ParameterCritical Care VisitorsOn
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 3 weeksWeekly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 โ€” better17.6
Further details โ€” not scored
Size21 MB8 MB
Age rating12+4+
DeveloperNottingham University HospitalsMohsin Asad Sadiq

Customer experience

Critical Care Visitors

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

On

Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Critical Care Visitors

No in-app purchases

1 purchases

On

One-time1
  • Buy me a coffee$2.99

Questions

Is Critical Care Visitors free?
Critical Care Visitors is free to download, with no in-app purchases.
Is On free?
On is free to download, with in-app purchases available.
Do Critical Care Visitors or On have ads?
Neither Critical Care Visitors nor On shows ads.
Which is updated more often, Critical Care Visitors or On?
Critical Care Visitors ships an update every 3 weeks, and On weekly. Most recently, Critical Care Visitors was updated on November 3, 2026 and On on October 31, 2026.

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